Carrot Cake with Banana

Mostly when I make a kids birthday cake I use a carrot cake recipe. Most children I know of love carrot cake.
For the Lightning Queen Cake cake I changed the recipe I normally make a bit and added bananas to it and omitted the nuts. It was delicious and a succes as the cake was gone in a minute.
Will add a picture later as I haven't made one of the cake itself.
Cake:
4 eggs
200 grams light brown sugar
200 ml sunflower oil
250 grams flour
2 teaspoons baking powder
1 teaspoon baking soda
2 teaspoons cinnamon
300 grams grated carrots
2 ripe bananas mashed
60 grams chopped walnuts

Frosting:
50 grams butter
1 ½ cups powdered sugar
100 grams cream cheese
1 teaspoon vanille extract

cake pan with removable bottom, greased (Ø24 cm)

Preheat oven to 170 C (350°F)
Grease and flour cake pan.
Into a bowl sift together the flour, baking powder, baking soda and cinnamon.
In a mixing bowl, beat the eggs and the sugar together until pale and thick.
Whisk in the oil and vanille extract.
Sift in the flour, baking powder, baking soda and cinnamon. Mix well.
Then add the carrots, banana and walnuts and stir until well blended.
Pour the mixture into the cake pan.
Bake for about 50 minutes or until a skewer inserted into the middle of the cake comes out clean.
Cool on a rack.

For the frosting - beat the butter and cream cheese together, then add the sugar and vanilla. Spread onto the cooled cake.